Box-machine



(No Model.)

A. KINGSBURY. BOX MACHINE.

No. 515,341. Patented Feb. 27, 1894.

ADDISON-KINGSBURY, OF COVENTRY, CONNECTICUT.

BOX-MACHINE.

SPECIFICATION forming part of Letters Patent No. 515,341, dated February27, 1894.

Application filed December 21, 1892. Serial No. 455,950. (No model.)

To all whom it may concern.-

Be it known that I, ADDISON KINGSBURY, a citizen of the United States,residing at South Coventry, Tolland county, State of Connectiout, haveinvented a certain new and useful Improvement in Box-Machines, which improvement is fully set forth and described in the followingspecification, reference being bad to the accompanying sheet ofdrawings, in Which- Figure 1 isaplan view'of portions of a machineembodying my invention and Fig. 2 is an end elevation of portions ofsuch a machine, having its frame broken away to expose the plunger, orform, upon which the boxes are made and the paste boxes located atopposite ends of said plunger. In Fig. 3 is shown, considerablyenlarged, in cross section, one of the paste boxes and its rolls.

This invention relates particularly to the class of machines in whichthe body blank of the box is forced downward between paste rolls, by asuitable plunger of the size and shape of the inside of the finishedbox: a type of said machine being seen in Patent No.

, 352,304, issued to W. S. Davis November 9,

1886, and the object of my present invention is to improve the pasterolls employed in such machines.

Said invention consists, in brief, of forming said rolls with milled orotherwise roughened perimeters, for reasons hereinafter explained.

In the drawings the letters 0. denote the end frames of a box machine,having cross bar b at the upper portion thereof, in which cross bar is avertically movable rod 0 that has a form 0' attached to its lower end.The rod 0 and connected form 0 are caused to rise and fall at statedtimes by means of cams and lever mechanisms not shown here. Located ateach end of the form 0 is a paste box d that has journaled in its sidenearest the form 0 a roll d that is almost in the path of said form whenthe machine is adjusted for use. As here shown a distributing roll (2 isprovided in the rear of the paste roll proper but this supplemental(distributing) roll is not a necessary feature of my invention and maybe dispensed with if desired. Paste roll cl bears upon one end a gear ethat meshes witha corresponding gear e upon a shaft 6 upon whose outerend is a score pulley a provided to reing form, the roll is likely to besprung and bent, thus rendering it unfit for further use. It has alsobeen found that, unless the paste roll and form travel at exactly thesame speed, the box blank, carried downward by the form,

is likely to wipe the paste from the roll at such points as are touchedby the blank and the latter, being carried too quickly past the roll, isdelivered to the folding mechanism beneath without suflicient paste tostick the ends when the latter are pressed upon said blank. To obviatethese difficulties and for other purposes of advantage, I check, mill,corrugate or otherwise roughen the outer surface of the paste rollssubstantially as here shown, in such manner that projecting points withintervening channels or interstices are provided throughout saidsurface. This construction reduces in a large degree the area of surfacepresented to the blank as the latter passes downward and, should morethan one thickness of cardboard seek to pass downward with the form, theprojecting points of the roll easily .press into said cardboard thusrelieving the great pressure and strain that, ordinarily, would springand bend the roll, as above explained. The channels or interstices alsoprovide pockets which fill with paste and serve to insure a free andliberal distribution of the same upon the paste board blank.

YVith the described paste-roll I use by prefcrence a scraper g of sheetmetal, extending from end to end of said roll. This scraper is hereshown as secured by rivets h to the cover it of the paste-box d in suchmanner that the edge in contact with the paste roll may be adjusted tobear more or less heavily upon said roll, the scraper being controlledin this respect by screws 2' tapped through the cover h and having theirends abutting the scraper. By simply unscrewing or screwing home thesescrews 11 the free edge of the scraper may be permitted to spring awayfrom therpaste roll or be forced into closer contact with it. Thescraper may thus be utilized to lay the paste smoothly upon the roll andto control the amount of paste carried by said roll. The location ofsaid scraper is not material so long as the paste scraped off by it fromthe roll 01 is permitted to flow back into the paste box 01.

When the box machine is in use the box dis kept filled with paste whichis carried by gravity downward, along the inclined bottom of the box,and is drawn from by roll 61', as needed, or, if a supplementaldistributing roll (1 is provided as here illustrated, the paste iscarried around by said supplemental roll and transferred to the pasteroll d with which it is in contact.

Having described my invention, I claim- 1. In combination with the boxblank supporting form of a box machine, a paste-roll projecting pointsadapted to be forcedinto the material with which the roller is incontact, and an adjustable scraper coacting with said roll in manner andfor the purpose specified.

ADDlSON KINGSBURY.

Witnesses:

FRANK H. ALLEN, LILA D; PEALE.

